mitt romney hit back at him on that. let's take a look. >> i spent 25 years in business. if i had a business executive come to me and say they wanted to spend a few hundred billion dollars to put a colony on the moon, i would say you're fired. >> professor, you think that's an example of romney at his best during debate, being straightforward and asserting business experience, what he knows. >> i do. i think that that accomplished a couple of things. it diminished newt gingrich, made him look sort of foolish for coming up with that idea, then subliminally reinforced romney as someone with some business credentials. he got to refer to himself as a ceo. that's what you want to do, ideally, is a two-pronged attack. it helps you and hurts the other guy. >> patrick, mitt romney does kind of struggle sometimes when it comes to attempts at humor or levity. he made a george costanza reference that felt a little dated, not that there's anything wrong with that, but there was this exchange he had with rick perry. i want to play that. >> rick, i'll tell you what, 10,000 bucks? $10,0